> How do you get /boot on a raid array? Doesn't /boot have to be on a partiton > that grub can read without raid being started? But it works for me! There is CentOS 4.0 RC1 for x86_64 and I will install final version when released. Relevant part of instalation kickstart is: bootloader --location=partition --append="rhgb quiet" clearpart --all --drives=sda,sdb part raid.7 --size=150 --ondisk=sda --asprimary part raid.8 --size=150 --ondisk=sdb --asprimary part raid.11 --size=100 --grow --ondisk=sdb part raid.10 --size=100 --grow --ondisk=sda raid /boot --fstype ext3 --level=RAID1 raid.7 raid.8 raid pv.12 --fstype "physical volume (LVM)" --level=RAID1 raid.10 raid.11 volgroup VolGroup00 --pesize=32768 pv.12 logvol / --fstype ext3 --name=LogVol00 --vgname=VolGroup00 --size=10240 logvol swap --fstype swap --name=LogVol01 --vgname=VolGroup00 --size=2048 logvol /var --fstype ext3 --name=LogVol02 --vgname=VolGroup00 --size=4096 logvol /tmp --fstype ext3 --name=LogVol03 --vgname=VolGroup00 --size=4096 logvol /home --fstype ext3 --name=LogVol04 --vgname=VolGroup00 --size=2048 logvol /rest --fstype ext3 --name=LogVol05 --vgname=VolGroup00 --size=100 --grow -- Sincerely Ivo Panacek